Swift2 Swift 2-用户';的当前位置在MKPolygon内
我试图检查用户的当前位置是否在MKPolygon中。我已经创建了以下函数,但是对于我的所有测试用例,它都返回false。我有什么地方做错了吗Swift2 Swift 2-用户';的当前位置在MKPolygon内,swift2,mapkit,core-location,cgpath,mkpolygon,Swift2,Mapkit,Core Location,Cgpath,Mkpolygon,我试图检查用户的当前位置是否在MKPolygon中。我已经创建了以下函数,但是对于我的所有测试用例,它都返回false。我有什么地方做错了吗 func isCorrectRegion(coordinates: Array<JSON>, userLocation: CLLocationCoordinate2D) -> Bool { var newCoordinates: [CLLocationCoordinate2D] = [] var mapPoints: [M
func isCorrectRegion(coordinates: Array<JSON>, userLocation: CLLocationCoordinate2D) -> Bool {
var newCoordinates: [CLLocationCoordinate2D] = []
var mapPoints: [MKMapPoint] = []
for(a):(JSON) in coordinates {
let lat = a.arrayValue[1].double
let long = a.arrayValue[0].double
let location = CLLocationCoordinate2D(latitude: lat!, longitude: long!)
newCoordinates.append(location)
}
for b in newCoordinates {
let c: MKMapPoint = MKMapPointForCoordinate(b)
mapPoints.append(c)
}
let polygon: MKPolygon = MKPolygon(points: &mapPoints, count: mapPoints.count)
let polyRender: MKPolygonRenderer = MKPolygonRenderer(polygon: polygon)
polyRender.invalidatePath()
let target: MKMapPoint = MKMapPointForCoordinate(userLocation)
let cgTarget: CGPoint = CGPoint(x: target.x, y: target.y)
let isWithin = CGPathContainsPoint(polyRender.path, nil, cgTarget, false)
return isWithin
}
func isCorrectRegion(坐标:数组,用户位置:CLLocationCoordinate2D)->Bool{
var newCoordinates:[CLLocationCoordinate2D]=[]
变量映射点:[MKMapPoint]=[]
对于(a):(JSON)在坐标中{
设lat=a.arrayValue[1]。双精度
设long=a.arrayValue[0]。双精度
let location=CLLocationCoordinate2D(纬度:纬度,经度:长!)
newCoordinates.append(位置)
}
在新坐标系中的b{
设c:MKMapPoint=mkmappointforcoordination(b)
mapPoints.append(c)
}
让多边形:MKPolygon=MKPolygon(点:&mapPoints,计数:mapPoints.count)
让polyRender:MKPolygonRenderer=MKPolygonRenderer(多边形:多边形)
polyRender.invalidatePath()
让目标:MKMapPoint=MKMapPointForCoordinate(userLocation)
设cgTarget:CGPoint=CGPoint(x:target.x,y:target.y)
让isWithin=CGPathContainsPoint(polyRender.path,nil,cgTarget,false)
返回时间在
}
在尝试了一些不同的方法后,终于找到了答案。希望这能帮助其他人:
func isCorrectRegion(coordinates: Array<JSON>, userLocation: CLLocationCoordinate2D) -> Bool {
var newCoordinates: [CLLocationCoordinate2D] = []
var mapPoints: [MKMapPoint] = []
let mpr: CGMutablePathRef = CGPathCreateMutable()
for(a):(JSON) in coordinates {
let lat = a.arrayValue[1].double
let long = a.arrayValue[0].double
let location = CLLocationCoordinate2D(latitude: lat!, longitude: long!)
newCoordinates.append(location)
}
for b in newCoordinates {
let c: MKMapPoint = MKMapPointForCoordinate(b)
mapPoints.append(c)
}
for var p = 0; p<mapPoints.count; p++ {
if p == 0 {
CGPathMoveToPoint(mpr, nil, CGFloat(mapPoints[p].x), CGFloat(mapPoints[p].y))
} else {
CGPathAddLineToPoint(mpr, nil, CGFloat(mapPoints[p].x), CGFloat(mapPoints[p].y))
}
}
let target: MKMapPoint = MKMapPointForCoordinate(userLocation)
let cgTarget: CGPoint = CGPoint(x: target.x, y: target.y)
let isWithin = CGPathContainsPoint(mpr, nil, cgTarget, false)
return isWithin
}
func isCorrectRegion(坐标:数组,用户位置:CLLocationCoordinate2D)->Bool{
var newCoordinates:[CLLocationCoordinate2D]=[]
变量映射点:[MKMapPoint]=[]
让mpr:CGMutablePathRef=CGPathCreateMutable()
对于(a):(JSON)在坐标中{
设lat=a.arrayValue[1]。双精度
设long=a.arrayValue[0]。双精度
let location=CLLocationCoordinate2D(纬度:纬度,经度:长!)
newCoordinates.append(位置)
}
在新坐标系中的b{
设c:MKMapPoint=mkmappointforcoordination(b)
mapPoints.append(c)
}
对于var p=0;p